feat: integrated some assets and made a hitbox and damage reaction system

main.gd

@@ -5,6 +5,7 @@ extends Node2D
 @onready var bubbles_back: TileMapLayer = $BubblesBack
 @onready var bubbles_interior: TileMapLayer = $BubblesInterior
 var active_camera: SuperCamera
+@onready var opening_fade_to_black: ColorRect = $OpeningFadeToBlack
 
 @onready var opening_cutscene: AnimationPlayer = $OpeningCutscene
 
@@ -15,6 +16,7 @@ func _ready() -> void:
 			child.became_active.connect(on_camera_became_active)
 	
 	opening_cutscene.play("opening_cutscene")
+	opening_fade_to_black.visible = true
 
 func on_camera_became_active(camera: SuperCamera):
 	active_camera = camera